As a Firefox Add-on

As a web application

The tabulator online version is a set of open source Javascript scripts ("AJAX") which can
run in any web page to add data browsing. It currently runs with Firefox,
(or as an Opera Widget)
and requires Firefox preferences to be set -- see the tabulator
help page or the sidebar on the right.

* First: configure Firefox

Before you try an online version:

Type into the main browser URI bar "about:config" and hit return to get to the config page.

Type codebase into the filter window

Double-click the line
signed.applets.codebase_principal_support ... user set ... boolean .. false
to change it to 'true'.

Go back to the tabulator, and try again. When the browser asks you
whether to allow the script to access arbitrary web pages, agree.
Check the "remember the answer this question" box.